Mollusca Linnaeus, 1758 - molluscs
   Gastropoda Cuvier, 1795 - snails and slugs
     Divasibranchia Minichev & Starobogatov, 1975
       Stylommatophora Schmidt, 1855 see Infraorder Stylommatophora Schmidt, 1855
         (Helicid Sigmurethra)
           Arionoidea Gray, 1840
             Arionidae Gray, 1840
               Binneyinae Cockerell, 1891 see Family Binneyidae Cockerell, 1891
                 Binneya Cooper, 1863
                   1 Allothyra Pilsbry, 1948